Unknown Man: The Mysterious Birth of a New Species

How to Draw Endangered Animals (How to Draw)

Fragile Species

Species: A Novel

On the Origin of Species a Facsimile of the First (Harvard Paperbacks)

Animal Talk: Interspecies Telepathic Communications

No Turning Back : The Life and Death of Animal Species

Our Endangered Atmosphere: Global Warming & the Ozone Layer (Ideas in Conflict Series)

Search for the Golden Moon Bear: Science and Adventure in Pursuit of a New Species

The Origin of Species by Means of Natural Selection: Or, the Preservation of Favored Races in the Struggle for Life (Modern Library (Paperback))